I have installed the new update 16.113 for outlook, I can't get back online as the toggle to switch is greyed out. Why?

Anna 0 Reputation points
2026-09-18T13:04:25.4+00:00

I have just updated outlook to Version 16.113. I have macOS Tahoe 26.7. I can't get outlook to go online. The toggle switch to enable it is greyed out. Please help. I need this to work on my Mac.

Outlook | MacOS | New Outlook for Mac | For home
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  1. AI answer

    2026-09-18T13:04:45.8366667+00:00

    The most likely reason is that Outlook is stuck offline, and in Outlook for Mac the online/offline state is controlled from the app menu rather than a separate switch.

    Try these steps:

    1. In Outlook for Mac, open the Outlook menu.
    2. Check whether Work Offline is selected.
    3. If it is checked, click Work Offline once to remove the check mark and return Outlook online.

    If Outlook still does not connect after that, check these common causes:

    1. Verify the Mac has Internet access
      • Open a web browser and confirm that websites load.
    2. Check the account connection status
      • Go to Tools > Accounts.
      • Look at the Exchange account.
      • If the connection indicator is orange, Outlook is not connecting to the server.
    3. Test the account outside Outlook
      • Try signing in with the same account in Outlook on the web.
      • If that also fails, the issue is likely with the account or server rather than the Outlook app.
    4. If this is an Exchange account, clear a corrupted cache
      • Warning: emptying the cache deletes any information not synchronized with the Exchange server, including contacts' mail certificates.
      • Make sure the Mac is connected to the Exchange server.
      • In the navigation pane, right-click the Exchange folder.
      • Select Properties.
      • On the General tab, choose Empty Cache.
      • Outlook will download the items again from the Exchange server.
    5. If using legacy Outlook and the switch location changed
      • In some Outlook for Mac builds, the New Outlook toggle was moved.
      • Use Help > Revert to Legacy Outlook.

    If the problem started immediately after updating to 16.113, collect the exact Outlook build from Outlook > About Outlook and use Help > Contact Support in the app for a Microsoft account, or contact the organization help desk for a work or school account.

    References:

    AI-generated content may be incorrect. Read our transparency notes for more information.

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  2. TaoLi 112.9K Reputation points Independent Advisor
    2026-09-18T13:39:23.88+00:00

    Hi , please try quitting Outlook completely with Command + Q, then reopen it.

    If it still won’t connect, could you share a screenshot of the greyed-out switch? Please hide your email address. I’d like to check whether it’s the “Work Offline” option or the “New Outlook” toggle.

    Also, can you send and receive emails normally through your email provider’s website?

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  3. TaoLi 112.9K Reputation points Independent Advisor
    2026-09-18T17:30:26.8566667+00:00

    Please click Outlook in the menu bar at the very top of your screen, then check Work Offline. If it’s ticked, click it to clear the tick.

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